Yay, Suicune is the most popular. <3
For me, Suicune is my favourite of the three beasts. I remember when I was little, it was actually Raikou which was my favourite, but for some reason, my preference switched over to Suicune. Raikou is still pretty cool-looking, but Suicune is beautiful, so I love it more. I don't really like Entei much; Suicune and Raikou outshine it in my eyes. XD